There are many ways to post code with syntax highlighting into your blog / website but most of them include a plugin for your CMS. For instance, Wordpress users have WP-CodeBox, etc. But what if you don't want to install a plugin? Or what if you can't (for instance on Blogger - blogspot.com)? Well, for that you can use http://snipplr.com which allows you to post any type of code and then embed it directly into your website.

After pasting some code on Snipplr, you will notice a "Embed" button on the top right corner. Click it and copy the code into your blog post: